#pragma once

#include <fcntl.h>
#include <fstream>
#include <iostream>
#include <string>
#include <unordered_map>

// 状态码及其描述
static const std::unordered_map<int, std::string> statu_msg = {{100, "Continue"},
                                                               {101, "Switching Protocol"},
                                                               {102, "Processing"},
                                                               {103, "Early Hints"},
                                                               {200, "OK"},
                                                               {201, "Created"},
                                                               {202, "Accepted"},
                                                               {203, "Non-Authoritative Information"},
                                                               {204, "No Content"},
                                                               {205, "Reset Content"},
                                                               {206, "Partial Content"},
                                                               {207, "Multi-Status"},
                                                               {208, "Already Reported"},
                                                               {226, "IM Used"},
                                                               {300, "Multiple Choice"},
                                                               {301, "Moved Permanently"},
                                                               {302, "Found"},
                                                               {303, "See Other"},
                                                               {304, "Not Modified"},
                                                               {305, "Use Proxy"},
                                                               {306, "unused"},
                                                               {307, "Temporary Redirect"},
                                                               {308, "Permanent Redirect"},
                                                               {400, "Bad Request"},
                                                               {401, "Unauthorized"},
                                                               {402, "Payment Required"},
                                                               {403, "Forbidden"},
                                                               {404, "Not Found"},
                                                               {405, "Method Not Allowed"},
                                                               {406, "Not Acceptable"},
                                                               {407, "Proxy Authentication Required"},
                                                               {408, "Request Timeout"},
                                                               {409, "Conflict"},
                                                               {410, "Gone"},
                                                               {411, "Length Required"},
                                                               {412, "Precondition Failed"},
                                                               {413, "Payload Too Large"},
                                                               {414, "URI Too Long"},
                                                               {415, "Unsupported Media Type"},
                                                               {416, "Range Not Satisfiable"},
                                                               {417, "Expectation Failed"},
                                                               {418, "I'm a teapot"},
                                                               {421, "Misdirected Request"},
                                                               {422, "Unprocessable Entity"},
                                                               {423, "Locked"},
                                                               {424, "Failed Dependency"},
                                                               {425, "Too Early"},
                                                               {426, "Upgrade Required"},
                                                               {428, "Precondition Required"},
                                                               {429, "Too Many Requests"},
                                                               {431, "Request Header Fields Too Large"},
                                                               {451, "Unavailable For Legal Reasons"},
                                                               {500, "Internal Server Error"},
                                                               {501, "Not Implemented"},
                                                               {502, "Bad Gateway"},
                                                               {503, "Service Unavailable"},
                                                               {504, "Gateway Timeout"},
                                                               {505, "HTTP Version Not Supported"},
                                                               {506, "Variant Also Negotiates"},
                                                               {507, "Insufficient Storage"},
                                                               {508, "Loop Detected"},
                                                               {510, "Not Extended"},
                                                               {511, "Network Authentication Required"}};

// MIME类型映射表
static const std::unordered_map<std::string, std::string> mime_msg = {
    {".aac", "audio/aac"},
    {".abw", "application/x-abiword"},
    {".arc", "application/x-freearc"},
    {".avi", "video/x-msvideo"},
    {".azw", "application/vnd.amazon.ebook"},
    {".bin", "application/octet-stream"},
    {".bmp", "image/bmp"},
    {".bz", "application/x-bzip"},
    {".bz2", "application/x-bzip2"},
    {".csh", "application/x-csh"},
    {".css", "text/css"},
    {".csv", "text/csv"},
    {".doc", "application/msword"},
    {".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
    {".eot", "application/vnd.ms-fontobject"},
    {".epub", "application/epub+zip"},
    {".gif", "image/gif"},
    {".htm", "text/html"},
    {".html", "text/html"},
    {".ico", "image/vnd.microsoft.icon"},
    {".ics", "text/calendar"},
    {".jar", "application/java-archive"},
    {".jpeg", "image/jpeg"},
    {".jpg", "image/jpeg"},
    {".js", "text/javascript"},
    {".json", "application/json"},
    {".jsonld", "application/ld+json"},
    {".mid", "audio/midi"},
    {".midi", "audio/x-midi"},
    {".mjs", "text/javascript"},
    {".mp3", "audio/mpeg"},
    {".mpeg", "video/mpeg"},
    {".mpkg", "application/vnd.apple.installer+xml"},
    {".odp", "application/vnd.oasis.opendocument.presentation"},
    {".ods", "application/vnd.oasis.opendocument.spreadsheet"},
    {".odt", "application/vnd.oasis.opendocument.text"},
    {".oga", "audio/ogg"},
    {".ogv", "video/ogg"},
    {".ogx", "application/ogg"},
    {".otf", "font/otf"},
    {".png", "image/png"},
    {".pdf", "application/pdf"},
    {".ppt", "application/vnd.ms-powerpoint"},
    {".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
    {".rar", "application/x-rar-compressed"},
    {".rtf", "application/rtf"},
    {".sh", "application/x-sh"},
    {".svg", "image/svg+xml"},
    {".swf", "application/x-shockwave-flash"},
    {".tar", "application/x-tar"},
    {".tif", "image/tiff"},
    {".tiff", "image/tiff"},
    {".ttf", "font/ttf"},
    {".txt", "text/plain"},
    {".vsd", "application/vnd.visio"},
    {".wav", "audio/wav"},
    {".weba", "audio/webm"},
    {".webm", "video/webm"},
    {".webp", "image/webp"},
    {".woff", "font/woff"},
    {".woff2", "font/woff2"},
    {".xhtml", "application/xhtml+xml"},
    {".xls", "application/vnd.ms-excel"},
    {".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
    {".xml", "application/xml"},
    {".xul", "application/vnd.mozilla.xul+xml"},
    {".zip", "application/zip"},
    {".3gp", "video/3gpp"},
    {".3g2", "video/3gpp2"},
    {".7z", "application/x-7z-compressed"}};

class Utils {
public:
    static std::string GetDescribe(std::string status_code) {
        LOG_INFO("code to int:%s", status_code.c_str());
        int code = std::stoi(status_code);
        auto it = statu_msg.find(code);
        if (it != statu_msg.end())
            return it->second;
        else
            return "Unknown";
    }

    static std::string GetMime(std::string filename) {
        // 倒数第一个 .
        size_t pos = filename.find_last_of('.');
        if (pos == std::string::npos) {
            return "application/octet-stream";
        }
        // 根据扩展名，获取mime
        std::string ext = filename.substr(pos);
        auto it = mime_msg.find(ext);
        if (it == mime_msg.end()) {
            return "application/octet-stream";
        }
        return it->second;
    }

    static bool ReadFile(std::string filename, std::string* response_body) {
        std::ifstream ifs(filename, std::ios::binary);
        if (ifs.is_open() == false) {
            return false;
        }
        size_t fsize = 0;
        ifs.seekg(0, ifs.end);         // 跳转读写位置到末尾
        fsize = ifs.tellg();           // 获取当前读写位置相对于起始位置的偏移量，从末尾偏移刚好就是文件大小
        ifs.seekg(0, ifs.beg);         // 跳转到起始位置
        response_body->resize(fsize);  // 开辟文件大小的空间
        ifs.read(response_body->data(), fsize);
        if (ifs.good() == false) {
            ifs.close();
            return false;
        }
        ifs.close();
        return true;
    }
};